B191D

B191D-WINDOW CONTROL CIRCUIT OVERCURRENT







- When Monitored:
Whenever the module is awake.

- Set Condition:
When the fused ignition switch output circuit to the power window switch is requiring more current than normal for over 30 ms, this code will set. If all 4 window switches are held in either the down or up position it may cause this code to set also.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTC's
3. Try to operate the Power Windows up and down several times.
4. Wait 30 seconds.
5. With the scan tool, read DTC's.

Does the scan tool display B191D-WINDOW CONTROL CIRCUIT OVERCURRENT?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Check for an intermittent excessive draw on one or more window motors and using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the BODY VERIFICATION TEST. Body Verification Test

2. EXCESSIVE WINDOW MOTOR DRAW
1. Operate the power windows and observe the speed of each window.

Is the speed of one window slower than the others?

Yes

- Replace the motor and regulator that is dragging
- Perform the BODY VERIFICATION TEST. Body Verification Test

No

- Go To 3

3. (F981) FUSED IGNITION SWITCH OUTPUT CIRCUIT PARTIAL SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Totally Integrated Power Module C7 connector.
3. Measure the resistance between ground and the (F981) Fused Ignition Switch Output circuit in the TIPM C7 connector.

Is the resistance below 100.0 ohms?

No

- Replace the Totally Integrated Power Module (TIPM).
- Perform the BODY VERIFICATION TEST. Body Verification Test

Yes

- Go To 4

4. POWER WINDOW SWITCH SHORTED




1. Disconnect the Power Window Switch connector.
2. Measure the resistance between ground and the (F981) Fused Ignition Switch Output circuit in the Window Switch connector.

Is the resistance below 100.0 ohms?

Yes

- Repair the (F981) Fused Ignition Switch Output circuit for a partial short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test

No

- Replace the Power Window Switch.
- Perform the BODY VERIFICATION TEST. Body Verification Test